A plane flying horizontally at an altitude of 1 mile and a speed of 500 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it has a total distance of 2 miles away from the station. (Round your answer to the nearest whole number.)

the answer is c.

for continuous functions, they continue in the same pattern and you have to find that pattern kinda like slope

you can't solve x because it is 2 linear equation and you only have one equation

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8